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    <title>Document</title>
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    <script>
        //变量：存储数据   声明变量 var (variable)
        //1.先声明 后赋值
        var school;
        school = '财工院';
        //2.声明并赋值
        var myName = '李飞';
        //3.同时声明多个类型的变量
        var age = 18,sex = '男',flag = true;
        //4.变量命名的规范 ***
       

    </script>
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